Can you RAID with different size drives?

You can always mix drive sizes in RAID. And in plain RAID you always get the smallest common size from all drives. So in your case, each drive use 4TB. If you added one 1TB drive, all the drives would act as 1TB drives.

Can you mix drive sizes in a RAID 5?

Re: Can you mix drive sizes within a RAID 5 array? Yes but each drive of the array is only formated to the size of the smallest drive.

Can you mix drive sizes in a RAID 6?

Honorable. It can be done, however the raid size is restricted to the smallest drive in the array. It’s generally frowned upon to use different drive types, let alone sizes for RAID, but it can be done if you don’t mind sacrificing the extra space on your larger drive to do it.

How many disks are needed for RAID 6?

4 drives
RAID 6 requires a minimum of 4 drives and a maximum of 32 drives to be implemented. Usable capacity is always two less than the number of available drives in the RAID set. Usage: Similar to RAID 5, including file servers, general storage servers, backup servers, etc.

Can you raid 2 different drives?

RAID 0 is normally used to increase performance, although it can also be used as a way to create a large logical volume out of two or more physical disks. A RAID 0 setup can be created with disks of differing sizes, but the storage space added to the array by each disk is limited to the size of the smallest disk.

What are the different RAID configurations?

What is RAID and what are the different RAID modes?

How many disks do you need for RAID 10?

Table 1 • RAID Level Comparison